This research was conducted to investigate the physico-mechanical characteris-tics of the ethylcellulose-based coating membranes plasticized with different weight percents of dibutyl sebacate. In this experiment, free thin polymer sheetings of the sample formulations, by incorporating incremental weight percents of the plasticizer, were prepared employing a revised casting method of dela...

to investigate the effects of drought stress and different combinations of animal manure with super absorbent polymer on yield and yield components of corn, a split plots design was conducted based on a randomized complete block design with 3 replications in fars agricultural research center in 2007. irrigation treatments were assigned as the main factor in three levels: 70, 105 and 140 mm evap...

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Abstract Environmental sustainability is described as one that avoids the depletion or deterioration of natural resources, while also allowing for preservation long-term environmental quality. By practicing sustainability, we may assist to guarantee requirements today’s population are satisfied without risking capacity future generations meet their own needs in future. Engineers field concrete ...

Since the advent of three-dimensional concrete printing (3DCP), several studies have shown potential strain hardening cementitious composites (SHCC) as a self-reinforcing printable mortar. However, only few papers focus on achieving sufficient buildability when developing SHCC. This study investigates role particle size distribution (PSD) in relation to properties mixture fresh state and harden...

Biodegradable active packaging films based on a cellulose acetate and poly(caprolactone diol) blend with incorporated lemongrass oil were developed. Films prepared using novel bio-based plasticizer, glycerol tritartarate, synthesized the principles of green chemistry. The influence as well essential amount, structural, surface, mechanical, thermal properties was investigated. plasticizer shown ...

Commercial wheat straw soda lignin was used to develop an alkali-O2 oxidation method to produce a ready-to-use solution for concrete plasticizing (cement dispersing). Lignin characterization was done directly from the solution. Depending on conditions, oxidation primarily induced either condensation or degradation of lignin. Thus, both the negative charge and the molar mass of the lignin were c...

The main objective of this study was to prepare sustained release metformin hydrochloride microcapsules by the Wurster fluidized bed and to obtain the optimized coating process and formulation. Fine microcapsules without agglomeration were obtained in a continuous coating process with the atomization air pressure of 0.2Mpa and an appropriate coating speed temperature. With other design variable...